Metalloids

The elements that make up metalloids are:

• Boron
• Silicon
• Geranium
• Arsenic
• Antimony
• Tellurium
• Polonium

They are scattered throughout period 2 through period 6.

Physical Properties

• Solid
• Metallic in color
• Conduct electricity under certain conditions

Chemical Properties

• Polonium is radioactive.
• Arsenic reacts with oxygen and tarnishes.
• When Tellurium burns, it produces a green-blue flame.

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Uses

• Silicon is used in computer chips
• Antimony in calculators
• Boron is used for flares and rockets

Interesting Facts

• In stairstep pattern on periodic table
• Metalloids have properties of both metals and nonmetals
• An average half sample of Polonium will evaporate in 3 days!

Your bibliography Animoto - the end of slideshows. Web. 27 Oct. 2009. <http://animoto.com/>.EditDelete"Metalloid -." Wikipedia, the free encyclopedia. Web. 27 Oct. 2009. <http://en.wikipedia.org/wiki/Metalloids>.EditDelete"Periodic table - chart of all chemical elements." Water Treatment and Purification - Lenntech. Web. 27 Oct. 2009. <http://www.lenntech.com/periodic/periodic-chart.htm>.EditDeleteThe Photographic Periodic Table of the Elements. Web. 27 Oct. 2009. <http://www.periodictable.com/>.EditDeleteWebElements Periodic Table of the Elements. Web. 27 Oct. 2009. <http://www.webelements.com/>.